Earthquake Engineering Research Institute
Learning From Earthquakes

USGS Reports on the 1985 Chilean Earthquake

Preliminary report of investigations of the central Chile earthquake of March 3, 1985 by Sylvester Theodore Algermissen Seismic site-response experiments following the March 3, 1985 central Chile earthquake (topographical and geological effects) edited by Mehmet Celebi Processed Chile earthquake records of 3 March 1985 and aftershocks compiled by Mehmet Celebi

Preliminary Reports on Strong Motion Records (Spanish)

Read the Report: Preliminary Report v. 1 on Strong Motion Records (466 kB PDF) Read the Report: Preliminary Report v. 2 on Strong Motion Records (1.1 MB PDF) Read the Report: Preliminary Report v. 3 on Strong Motion Records (1.54 MB PDF) Click here to visit the University of Chile website for preliminary records from Santiago sites–one is at the faculty of […]

List of earthquakes in Chile from February 27, 2010 until March 12, 2010

 5.9 2010/03/12 16:50:06   -34.177 -71.659  35.0   LIBERTADOR O’HIGGINS, CHILE5.1 2010/03/12 16:04:53   -34.006 -71.620  35.0   REGION METROPOLITANA, CHILE4.9 2010/03/12 13:25:26   -34.187 -71.772  35.0   LIBERTADOR O’HIGGINS, CHILE4.9 2010/03/12 11:02:16   -38.084 -72.660  35.0   ARAUCANIA, CHILE4.8 2010/03/12 10:39:27   -34.291 -71.888  35.0   LIBERTADOR O’HIGGINS, CHILE4.8 2010/03/12 09:00:56   -34.287 -71.661  35.0   LIBERTADOR O’HIGGINS, CHILE4.7 2010/03/12 08:53:28   -34.337 -71.616  35.0   LIBERTADOR O’HIGGINS, CHILE4.9 2010/03/12 06:56:41   -34.198 -71.759  35.0   LIBERTADOR O’HIGGINS, CHILE4.8 2010/03/12 06:45:01   -34.289 -71.859  35.0   LIBERTADOR O’HIGGINS, CHILE5.0 2010/03/12 06:10:38   -34.377 -71.609  35.0   LIBERTADOR O’HIGGINS, CHILE4.8 2010/03/12 03:10:49   -34.322 -71.797  35.0   LIBERTADOR O’HIGGINS, CHILE4.7 2010/03/12 02:58:55   -37.056 -72.781  35.0   BIO-BIO, CHILE4.9 2010/03/12 01:46:59   -34.339 -71.642  30.9   LIBERTADOR O’HIGGINS, CHILE     4.9 2010/03/11 23:18:11   -37.404 -73.011  35.0   BIO-BIO, CHILE5.5 2010/03/11 22:34:05   -37.647 -73.496  36.9   BIO-BIO, CHILE4.9 2010/03/11 21:50:07   -34.324 -71.711  33.1   LIBERTADOR O’HIGGINS, CHILE5.8 2010/03/11 20:11:20   -34.327 -71.680  2.3   LIBERTADOR O’HIGGINS, CHILE5.5 2010/03/11 19:28:07   -34.307 -71.772  24.5   LIBERTADOR O’HIGGINS, CHILE5.1 2010/03/11 17:18:50   -34.256 -71.845  23.3   LIBERTADOR O’HIGGINS, CHILE5.3 2010/03/11 16:56:33   -34.407 -71.757  35.0   LIBERTADOR […]

Sierra El Mayor Earthquake of April 4, 2010, Baja California

Surface fault rupture and other ground failure investigations are underway by a collaborative team comprised of representatives from the U.S. Geological Survey, California Geological Survey, Southern California Earthquake Center, and other organizations. The Earthquake Engineering Research Institute also deployed a group of its members to the region soon after the event struck. Major geologic findings […]